For Rotary Member Patents (Class 384/289)
  • Patent number: 10336964
    Abstract: The invention provides a grease composition suitable for being packed in roll bearings to be lubricated at elevated temperatures and a bearing in which the above-mentioned grease composition is packed. In the grease composition containing a base oil, a urea-containing thickener and an additive, the additive includes an overbased metal sulfonate and the amount of the overbased metal sulfonate is 0.05 to 1.00 mass % with respect to the total amount of the grease composition. The bearing has the above-mentioned grease composition sealed therein.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: July 2, 2019
    Assignee: KYODO YUSHI CO., LTD.
    Inventors: Yutaka Imai, Yuji Onuki
  • Publication number: 20150078689
    Abstract: A journal bearing is provided for mounting a gear component thereon and for reducing vibrations from operation of the gear component. The journal bearing includes a cylindrical body having two recessed portions defined thereon. The journal bearing further includes a primary passage extending longitudinally through the cylindrical body, and two secondary passages radially extending from the primary passage to the recessed portions. An angle of the two secondary passages with respect to a horizontal plane of the journal bearing is based on at least one of a magnitude and direction of a pre-determined bearing load, a rotational speed of the gear component, a clearance between the journal bearing and the gear component, oil properties, wherein the oil is introduced between the journal bearing and the gear component, and one or more system stability parameters.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Applicant: Solar Turbines Inc.
    Inventors: Edward William Sieveking, Yuanhong Guan
  • Publication number: 20140169712
    Abstract: In a journal-bearing device for bearing a rotary shaft of a rotary machine, including an upper-bearing liner, a lower-bearing liner connected to a lower part of the upper-bearing liner, and an oil removing groove provided in a sliding surface of the lower-bearing liner and extending to both bearing side surfaces from a center portion in a bearing-width direction, the oil removing groove is provided on a downstream side in a rotary shaft-rotation-direction relative to an oil-film-pressure producing portion of the sliding surface of the lower-bearing liner, an end portion of the oil removing groove in the bearing-width direction is arranged on the rotation direction downstream side relative to a center portion of the groove in the bearing-width direction, and the journal-bearing device has a sliding surface on a downstream side of the oil removing groove of the lower-bearing liner in the rotary-shaft rotation direction.
    Type: Application
    Filed: November 14, 2013
    Publication date: June 19, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Kenta SUZUKI, Makoto HEMMI, Tomoaki INOUE, Kenichi MURATA
  • Patent number: 8657499
    Abstract: A heavy load bearing includes a casing and assembly having at least two units and an axial hole run-through by a shaft. Each unit has a mounting portion on the circumferential outer surface, two connection portions at two ends, an axle hole, and at least one groove indented axially from the connection portion and formed between an outer wall near the mounting portion and an inner wall near the axle hole. At least one set of multiple notches is formed annularly on a free end of the inner wall and communicating with the groove and axle hole. The casing has an axial cavity to hold the assembly. Two abutting units are coupled to form at least one storage chamber to store lubricating media. The notches of the two abutting units form at least one set of multiple fine flow passages communicating with the axial hole and storage chamber.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: February 25, 2014
    Assignee: Newcera Technology Co., Ltd.
    Inventors: Chao-Nien Tung, Han-Ching Liu, Lung-Wei Huang
  • Patent number: 8657500
    Abstract: A bearing includes a housing and an assembly which consists of at least two elements. Each element has an axle hole to form an axial hole of the assembly run through by a shaft. At least one element has at least one set of multiple notches formed thereon directing towards at least one of two ends thereof to communicate with the axle hole, and at least one groove with an enlarged opening formed on the wall surface of the axle hole directing towards the notches. The groove on the wall surface of the axle hole has at least one set of multiple recesses formed thereon. The housing has a through axial cavity to house the assembly. The bearing has at least one storage chamber to store lubricating media. The notches on at least one set of adjacent elements form at least one set of multiple passages communicating with the storage chamber and the axial hole.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: February 25, 2014
    Assignee: Newcera Technology Co., Ltd.
    Inventors: Chao-Nien Tung, Han-Ching Liu, Lung-Wei Huang
  • Patent number: 8632250
    Abstract: A hybrid lubricating module includes a housing and an assembly which consists of at least two elements and has an axial hole run through by a shaft. At least one of the elements has one set of multiple notches on one end surface communicating with an axle hole. The housing has a through axial cavity to encase the assembly. An outer wall surface of the assembly and an inner wall surface of the housing are assembled to each other to form at least one storage chamber to store lubricating media. Multiple notches on at least one adjacent element form at least one set of passages communicating with the axial hole and the at least one storage chamber.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 21, 2014
    Assignee: NEWCERA Technology Co. Ltd.
    Inventors: Chao-Nien Tung, Han-Ching Liu, Lung-Wei Huang
  • Patent number: 7748292
    Abstract: A bearing system can reduce the relative velocity between a bearing member and a rotation shaft and a rotating member to decrease a load on the bearing member although the rotation shaft and the rotating member rotate in opposite directions with the bearing member therebetween. The bearing system includes a case and a rotation shaft supported by the case. A rotating member is disposed coaxially outside the rotation shaft and rotates in the direction opposite to that of the rotation shaft. A housing is interposed between the rotation shaft and the rotating member and is fixed to the case. A bearing member that rotatably supports the rotating member is interposed between the housing and the rotating member.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: July 6, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Yoshihiko Takeuchi
  • Publication number: 20090003742
    Abstract: An object of the invention is to provide a grease composition capable of keeping a good lubrication condition for a long period of time even when water has mixed therein, thereby inhibiting white structure flaking and corrosion. Another object is to provide a vehicular hub unit bearing which hardly suffers from white structure flaking and corrosion even when used in an environment where water may penetrate into it and which therefore has a long life. The invention provides a rolling bearing with, sealed up therein, a grease composition containing a waterproof film-forming additive added thereto; a grease composition for hub unit bearings, containing a base oil that comprises at least one of mineral oil and synthetic oil as the main ingredient thereof, and a thickener and a flaking inhibitor; and a vehicular hub unit bearing with the grease composition sealed up therein.
    Type: Application
    Filed: January 24, 2006
    Publication date: January 1, 2009
    Applicants: NSK LTD., KYODO YUSHI CO., LTD.
    Inventors: Shinya Nakatani, Jun Kuraishi, Tomoaki Matsumoto, Minoru Namiki, Ryo Aida, Toshiaki Endo
  • Patent number: 6663289
    Abstract: A bearing with one or more layers of lubricated spacers for dynamically brace-supporting first and second slide surfaces independently movable relative to each other. The spacers are positioned between the first and second slide surfaces, and each spacer has a pair of opposing spacer slide surfaces which are adapted to slide in surface-to-surface contact relative to an adjacent slide surface. Lubricants are used to facilitate low friction relative sliding motion between the slide surfaces, which can be either bonded to the spacers, or separately deposited between the slide surfaces.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 16, 2003
    Inventor: Pablo Javier Iljin
  • Patent number: 6220758
    Abstract: A roller supporting device which comprises a pair of supporting arms, a supporting shaft attached between the pair of supporting arms in a non-rotatable manner, and a roller having an inner hole in the central part thereof, the roller being disposed between the pair of supporting arms and being supported in a rotatable manner by the supporting shaft inserted through the inner hole, the roller being arranged to rotate along with the relative movement with a mating member by making the roller contact with the mating member, wherein a cut out portion, which extends in the axial direction on the outer circumferential surface of the supporting shaft, is formed at an appropriate portion except the portion on which the inner circumferential surface of the inner hole of the roller is pressed due to the load applied to the roller from the mating member, thereby defining an oil passage which extends in the axial direction between the supporting shaft and the inner circumferential surface of the inner hole of the roller
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 24, 2001
    Assignee: Daido Metal Company, Ltd.
    Inventors: Akira Ono, Yasunobu Imahata, Arihiro Kimura, Hiroshi Naitoh, Koichi Yamamoto, Takayuki Shibayama
  • Patent number: 6056442
    Abstract: A roller supporting device comprises a pair of supporting arms, a supporting shaft attached between the pair of supporting arms in a non-rotatable manner, and a roller having an inner hole in the central part thereof, the roller being disposed between the pair of supporting arms and being supported in a rotatable manner by the supporting shaft inserted through the inner hole, the roller being arranged to rotate along with the relative movement with a mating member by making the roller contact with the mating member, wherein a cut out portion, which extends in the axial direction on the outer circumferential surface of the supporting shaft, is formed at an appropriate portion except the portion on which the inner circumferential surface of the inner hole of the roller is pressed due to the load applied to the roller from the mating member, thereby defining an oil passage which extends in the axial direction between the supporting shaft and the inner circumferential surface of the inner hole of the roller.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: May 2, 2000
    Assignee: Daido Metal Company Ltd.
    Inventors: Akira Ono, Yasunobu Imahata, Arihiro Kimura, Hiroshi Naitoh, Koichi Yamamoto, Takayuki Shibayama
  • Patent number: 5927861
    Abstract: A motor bearing device includes a bearing member, and a rotary shaft made of steel into which ions of metal element and carbon ions are implanted via a surface of the rotary shaft. The rotary shaft is slidable relative to the bearing member. The metal element is selected from the group consisting of metal elements in the IVa, Va, and VIa groups of the periodic system. Lubricant is provided between the bearing member and the rotary shaft. The surface of the rotary shaft opposes the bearing member.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: July 27, 1999
    Assignees: Matsushita Electric Industrial Co., Ltd., Nippon Steel Corporation
    Inventors: Fumitoshi Yamashita, Katsuhiro Murano, Seiji Kurozumi, Kazunori Hayashi, Kanao Fukuda, Masato Inayoshi
  • Patent number: 5713672
    Abstract: A positioning pivot including a shaft, at least one sleeve and at least one hinge butt is able to prolong its lifespan by inserting the sleeve between the shaft and the hinge butt after a combination of the shaft and the hinge butt is accomplished. Due to an opposite difference between an orientation of a helical slit defined in the sleeve and a helical groove defined in an outer periphery of the shaft, lubricant added to the helical groove is able to be disperse to other portions of the shaft when the sleeve is securely retained within the hinge butt and the shaft is rotated. Additionally, a portion of the shaft is configured to be hollow, so that even when a relationship between the portion and the sleeve is loosened, a dimension of the portion of the shaft is able to be enlarged by an adjusting element to regain tight relationship between the portion of the shaft and the sleeve again.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: February 3, 1998
    Inventor: Sheng-nan Lu